eonian

Adjective eonian has 2 senses

• eonian(a = adj.pert) aeonian - of or relating to a geological eon (longer than an era);
Derived form noun eon₁

• eonian(s = adj.all) aeonian, ageless, eternal, everlasting, perpetual, unceasing, unending - continuing forever or indefinitely; "the ageless themes of love and revenge"; "eternal truths"; "life everlasting"; "hell's perpetual fires"; "the unending bliss of heaven"
Derived form noun eon₂